Foundation level- II JEE Mock Test-3 (Chemistry)

Photosynthesis is a example of ____ change

• Physical
• Chemical
• Mechanical
• Electrical

Beating of aluminium to make aluminium foil is a example of

• Chemical change
• Nuclear change
• Physical change
• Biological change

Formation of manure from leaves is a_____change

• Chemical
• Physical
• Chemical change

• Nuclear

The chemical name of Baking soda is___

• Sodium carbonate

• Sodium bi carbonate

• Calcium carbonate

• None of these

Changes in which new substances cannot be formed are called___ changes

• Chemical
• Physical
• Biological
• Nuclear

Which one of the following is a example of physical change

• Melting of ice
• Burning of wood
• Digestion of food
• Rusting of iron

Melting of wax is a example of ____ change

• Chemical
• Physical
• Biological
• Nuclear

Burning of candle is a example of ____change

• Physical
• Chemical
• Mechanical
• Electrical

Select the method which is used to prevent rusting of iron

• Painting or oiling
• Exposing to air
• Heating
• Adding water

Which among the following is a chemical change?

• Tearing a piece of paper
• Melting of ice
• Boiling of water
• Burning of wood